Towel bar



FIG. 1 is a rear and bottom perspective view of a towel bar showing my new design;

FIG. 2 is a front and top perspective view thereof;

FIG. 3 is an enlarged inverted rear elevational view thereof;

FIG. 4 is an enlarged top plan view thereof;

FIG. 5 is an enlarged front elevational view thereof;

FIG. 6 is an enlarged bottom plan view thereof;

FIG. 7 is an enlarged side elevational view taken from the right of FIG. 1. 

The ornamental design for towel bar, as shown and described. 